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Android EditText實(shí)現(xiàn)分割輸入內(nèi)容

 更新時(shí)間：2017年04月28日 10:48:36   作者：w一花一世界w  
這篇文章主要為大家詳細(xì)介紹了Android EditText實(shí)現(xiàn)分割輸入內(nèi)容的相關(guān)資料，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

在項(xiàng)目中可能會(huì)有許多需要輸入手機(jī)號(hào)碼、銀行卡號(hào)或者身份證號(hào)等內(nèi)容的輸入框。如果直接輸入的話將會(huì)是一堆號(hào)碼堆在一起，第一是不太美觀，第二也容易出錯(cuò)，用戶體驗(yàn)不太好。但是若將輸入的號(hào)碼按特定格式進(jìn)行分割將會(huì)大大提高用戶體驗(yàn)！

以下是對(duì)常用的號(hào)碼進(jìn)行簡(jiǎn)單封裝的自定義輸入框控件，方便我們?cè)陂_發(fā)過程中使用：

  • 該控件支持xml屬性指定，也支持代碼指定；
  • 該控件支持類型分別為電話號(hào)碼(000 0000 0000)、銀行卡號(hào)(0000 0000 0000 0000 000)和身份證號(hào)(000000 0000 0000 0000)。

效果圖

自定義EditText

/**
 * @Description 分割輸入框
 * @Author 一花一世界
 */
public class ContentWithSpaceEditText extends EditText {

  public static final int TYPE_PHONE = 0;
  public static final int TYPE_CARD = 1;
  public static final int TYPE_IDCARD = 2;
  private int maxLength = 100;
  private int contentType;
  private int start, count, before;
  private String digits;

  public ContentWithSpaceEditText(Context context) {
    this(context, null);
  }

  public ContentWithSpaceEditText(Context context, AttributeSet attrs) {
    super(context, attrs);
    parseAttributeSet(context, attrs);
  }

  public ContentWithSpaceEditText(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    parseAttributeSet(context, attrs);
  }

  private void parseAttributeSet(Context context, AttributeSet attrs) {
    TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.ContentWithSpaceEditText, 0, 0);
    contentType = ta.getInt(R.styleable.ContentWithSpaceEditText_type, 0);
    ta.recycle();
    initType();
    setSingleLine();
    addTextChangedListener(watcher);
  }

  private void initType() {
    if (contentType == TYPE_PHONE) {
      maxLength = 13;
      digits = "0123456789 ";
      setInputType(InputType.TYPE_CLASS_NUMBER);
    } else if (contentType == TYPE_CARD) {
      maxLength = 23;
      digits = "0123456789 ";
      setInputType(InputType.TYPE_CLASS_NUMBER);
    } else if (contentType == TYPE_IDCARD) {
      maxLength = 21;
      digits = "0123456789xX ";
      setInputType(InputType.TYPE_CLASS_TEXT);
    }
    setFilters(new InputFilter[]{new InputFilter.LengthFilter(maxLength)});
  }

  @Override
  public void setInputType(int type) {
    super.setInputType(type);
    // setKeyListener要在setInputType后面調(diào)用，否則無效
    if (!TextUtils.isEmpty(digits)) {
      setKeyListener(DigitsKeyListener.getInstance(digits));
    }
  }

  private TextWatcher watcher = new TextWatcher() {

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
      ContentWithSpaceEditText.this.start = start;
      ContentWithSpaceEditText.this.before = before;
      ContentWithSpaceEditText.this.count = count;
    }

    @Override
    public void afterTextChanged(Editable s) {
      if (s == null) {
        return;
      }
      //判斷是否是在中間輸入，需要重新計(jì)算
      boolean isMiddle = (start + count) < (s.length());
      //在末尾輸入時(shí)，是否需要加入空格
      boolean isNeedSpace = false;
      if (!isMiddle && isSpace(s.length())) {
        isNeedSpace = true;
      }
      if (isMiddle || isNeedSpace || count > 1) {
        String newStr = s.toString();
        newStr = newStr.replace(" ", "");
        StringBuilder sb = new StringBuilder();
        int spaceCount = 0;
        for (int i = 0; i < newStr.length(); i++) {
          sb.append(newStr.substring(i, i + 1));
          //如果當(dāng)前輸入的字符下一位為空格(i+1+1+spaceCount)，因?yàn)閕是從0開始計(jì)算的，所以一開始的時(shí)候需要先加1
          if (isSpace(i + 2 + spaceCount)) {
            sb.append(" ");
            spaceCount += 1;
          }
        }
        removeTextChangedListener(watcher);
        s.replace(0, s.length(), sb);
        //如果是在末尾的話,或者加入的字符個(gè)數(shù)大于零的話（輸入或者粘貼）
        if (!isMiddle || count > 1) {
          setSelection(s.length() <= maxLength ? s.length() : maxLength);
        } else if (isMiddle) {
          //如果是刪除
          if (count == 0) {
            //如果刪除時(shí)，光標(biāo)停留在空格的前面，光標(biāo)則要往前移一位
            if (isSpace(start - before + 1)) {
              setSelection((start - before) > 0 ? start - before : 0);
            } else {
              setSelection((start - before + 1) > s.length() ? s.length() : (start - before + 1));
            }
          }
          //如果是增加
          else {
            if (isSpace(start - before + count)) {
              setSelection((start + count - before + 1) < s.length() ? (start + count - before + 1) : s.length());
            } else {
              setSelection(start + count - before);
            }
          }
        }
        addTextChangedListener(watcher);
      }
    }
  };

  private boolean isSpace(int length) {
    if (contentType == TYPE_PHONE) {
      return isSpacePhone(length);
    } else if (contentType == TYPE_CARD) {
      return isSpaceCard(length);
    } else if (contentType == TYPE_IDCARD) {
      return isSpaceIDCard(length);
    }
    return false;
  }

  private boolean isSpacePhone(int length) {
    return length >= 4 && (length == 4 || (length + 1) % 5 == 0);
  }

  private boolean isSpaceCard(int length) {
    return length % 5 == 0;
  }

  private boolean isSpaceIDCard(int length) {
    return length > 6 && (length == 7 || (length - 2) % 5 == 0);
  }

  public void setContentType(int contentType) {
    this.contentType = contentType;
    initType();
  }

  public String getTextWithoutSpace() {
    return super.getText().toString().replace(" ", "");
  }

  /**
   * @Description 內(nèi)容校驗(yàn)
   */
  public boolean isContentCheck() {
    String text = getTextWithoutSpace();
    if (contentType == TYPE_PHONE) {
      if (TextUtils.isEmpty(text)) {
        ToastUtil.showText(UIUtils.getString(R.string.phone_number_not_empty));
      } else if (text.length() < 11) {
        ToastUtil.showText(UIUtils.getString(R.string.phone_number_incorrect_length));
      } else {
        return true;
      }
    } else if (contentType == TYPE_CARD) {
      if (TextUtils.isEmpty(text)) {
        ToastUtil.showText(UIUtils.getString(R.string.bank_card_not_empty));
      } else if (text.length() < 16) {
        ToastUtil.showText(UIUtils.getString(R.string.bank_card_incorrect_length));
      } else {
        return true;
      }
    } else if (contentType == TYPE_IDCARD) {
      if (TextUtils.isEmpty(text)) {
        ToastUtil.showText(UIUtils.getString(R.string.identity_number_not_empty));
      } else if (text.length() < 18) {
        ToastUtil.showText(UIUtils.getString(R.string.identity_number_incorrect_length));
      } else {
        return true;
      }
    }
    return false;
  }
}

配置attrs.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
  <declare-styleable name="ContentWithSpaceEditText">
    <attr name="type" format="enum">
      <enum name="phone" value="0" />
      <enum name="card" value="1" />
      <enum name="IDCard" value="2" />
    </attr>
  </declare-styleable>
</resources>

布局文件中使用

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@color/theme_bg"
  android:orientation="vertical">

  <com.wiggins.splitinput.widget.TitleView
    android:id="@+id/titleView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="@dimen/item_normal"
    android:layout_margin="@dimen/margin_normal"
    android:gravity="center_vertical"
    android:orientation="horizontal">

    <TextView
      android:layout_width="@dimen/btn_width_normal"
      android:layout_height="match_parent"
      android:gravity="center_vertical"
      android:text="@string/phone_number"
      android:textColor="@color/blue"
      android:textSize="@dimen/font_normal" />

    <com.wiggins.splitinput.widget.ContentWithSpaceEditText
      android:id="@+id/edt_phone_input"
      android:layout_width="match_parent"
      android:layout_height="@dimen/item_normal"
      android:background="@color/white"
      android:gravity="center"
      android:hint="@string/please_enter_content"
      android:inputType="number"
      android:textColor="@color/blue"
      android:textColorHint="@color/gray"
      android:textCursorDrawable="@null"
      android:textSize="@dimen/font_normal"
      app:type="phone" />
  </LinearLayout>

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="@dimen/item_normal"
    android:layout_margin="@dimen/margin_normal"
    android:gravity="center_vertical"
    android:orientation="horizontal">

    <TextView
      android:layout_width="@dimen/btn_width_normal"
      android:layout_height="match_parent"
      android:gravity="center_vertical"
      android:text="@string/bank_card_number"
      android:textColor="@color/blue"
      android:textSize="@dimen/font_normal" />

    <com.wiggins.splitinput.widget.ContentWithSpaceEditText
      android:id="@+id/edt_bank_card_input"
      android:layout_width="match_parent"
      android:layout_height="@dimen/item_normal"
      android:background="@color/white"
      android:gravity="center"
      android:hint="@string/please_enter_content"
      android:inputType="number"
      android:textColor="@color/blue"
      android:textColorHint="@color/gray"
      android:textCursorDrawable="@null"
      android:textSize="@dimen/font_normal"
      app:type="card" />
  </LinearLayout>

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="@dimen/item_normal"
    android:layout_margin="@dimen/margin_normal"
    android:gravity="center_vertical"
    android:orientation="horizontal">

    <TextView
      android:layout_width="@dimen/btn_width_normal"
      android:layout_height="match_parent"
      android:gravity="center_vertical"
      android:text="@string/identity_number"
      android:textColor="@color/blue"
      android:textSize="@dimen/font_normal" />

    <com.wiggins.splitinput.widget.ContentWithSpaceEditText
      android:id="@+id/edt_identity_input"
      android:layout_width="match_parent"
      android:layout_height="@dimen/item_normal"
      android:background="@color/white"
      android:gravity="center"
      android:hint="@string/please_enter_content"
      android:inputType="number"
      android:textColor="@color/blue"
      android:textColorHint="@color/gray"
      android:textCursorDrawable="@null"
      android:textSize="@dimen/font_normal"
      app:type="IDCard" />
  </LinearLayout>
</LinearLayout>

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